Pregnancy, Growth, and Development

Prenatal PeriodPostnatal Period

Prenatal Period1. Period of cleavage

1. When does conception begin?2. What is cleavage?3. What is a morula?4. What is a blastocyst?

What is the embryo proper?5. Draw and label pg. 881 figure 23.5 in your notes6. What is implantation?7. What is the placenta?8. What is the function of human chorionic gonadotropin?

2. Embryonic stage1. When does the embryonic stage occur?2. Define the following terms: amniotic cavity, embryonic disc, primary germ layers, gastrula, chorion, chorionic

villi, lacunae, amnion, amniotic fluid, umbilical cord, yolk sac, allantois, and teratogens.

3. Fetal stage1. When does the fetal stage begin and end?2. What is a fetus?3. What does full-term mean?4. List the major events that occur per month starting at the third month and ending with the third trimester.5. Know the Stage and Time Period (Pg. 895, Table 23.3) of Prenatal Development

Postnatal Period

• We will cover this on Friday in class.